Improvement in cylinders for puivip - stocks



PARKER VVINEMAN, OF ROCK ISLAND, ILLINOIS.

IMPROVEMENT iN CVLlNDERS FCR PUMP-STCKS.

Specification forming part of Letters Patent No. 180,513, dated August 1, 1876; application filed May 6, 1876.

To all whom 'it may concern:

Be it known that' I, PARKER Www/IAN, of Rock Island, in the county of Rock Island and State ot' Illinois, have invented certain new and useful Improvements in Cylinders for Pump Stocks 5 and I do hereby declare that the following is a full,clear, and exact description thereof', which will Venable others skilled in the art to which it appertains to make and use the same, reference being had to the ae colnpanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to pumps; and the invention consists in making the portion of the pump-stock in which the plunger moves up and down, and which is commonly known as the cylinder, of sheet-iron coated with some suitablevitreous substance on both sides, so that a smooth and uniform surface is provided forthe play of the-plunger, and the metal is completely protected on all sides from injury by oxidation.

I have before used pump-cylinders made of cast-iron lined on the inside with vitreous 1r ttterial, such as are fully described `1n Letters Iatentoi' the United States No. 90,143, granted to me May 18, 1869, but I find that a sheetiron cylinder willanswer the same purpose as those made of cast-iron, and is lunch more economical to the public. I also iind that by coating the sheet-iron cylinder on all sides With the vitreous material the wooden pumpstocks iii' which the cylinder is inserted, as well as the cylinder itself', will not be affected injuriously by the oxidation of the metal, but will he rendered, in a measure, indestructible from any such cause.

In the accompanyingdrawing,Figure 1 is a vertical sectional View of a portion of a wooden pump-stock with my new metal cylinder inserted therein. Fig. 2 is a sectional View of the cylinder, showing its construction, uc.

A A represent two sections oi' a wooden pump-stock, and B a cylinder inserted therein, and within which the plunger is intended to recil'noeate or move up and down. rlhe cylinder need only be of such length as will correspond with the stroke of the plunger. I iind about twelve inches tobe a very convenient and suitable length. The diameter oi" the cylinder may, ofcourse, be varied as occasion requires; but for ordinary purposes the cylinder may be made about twelve inches long, an'd with a threeineh bore, or nine inches in cir cumferenee. The cylinder is coated, by any of the well-known processes, with vitreous material on both sides.

It will be evident that this sheet-iron cylinder might be used in connection with other kinds of pump-stocks than those made ot' wood, and, being thin and easily handled, it might be secured within metal tubing' or other portion of metal pumps at the proper place for the working of the plunger.

I am aware that copper sheet-metal cylinders and pum p-cylinders made ot' glass, stone, and porcelain have been used, and l do `not Wish to be understood as claiming any cylinder so constructed.

What I do claim, and desire to secure by Letters Patent, is

A pumpeylinder made of sheet-iron coated-v ou both or all sides with vitreous material, substantially as and for the purpose specified. In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

PARKER WINEMAN. Witnesses:

JAMES J. PARKS, W. I-I. GEST. 

